Species Card of Copepod
Calanoida ( Order )
    Diaptomoidea ( Superfamily )
        Pseudodiaptomidae ( Family )
            Pseudodiaptomus ( Genus )
Pseudodiaptomus andamanensis  Pillai, 1980   (F,M)
Ref.:
Pillai, 1976 (1980) (p.256, figs.F,M)
Species Pseudodiaptomus andamanensis - Plate 1 of morphological figuresissued from : P.P. Pillai in J. mar. biol. Ass. India, 1976 (1980), 18 (2). [p.257, Fig.3].
Female (from Port Blair, Andaman Sea): a, habitus (dorsal); b, urosome (dorsal); c, anal segment and caudal rami (enlarged); d, urosome (lateral, right side); e, urosome (lateral, left side); f, rostrum; g, A1 (distal segments, enlarged); h, Md (masticatory edge); i, distal enlargment of seta on Mxp; j, P1; k, P2; l, P5.Head and 1st thoracic segment separate, 4th and 5th fused. Posterior angles of last thoracic segment asymmetically into outwardly directed spines, left spine reaching to posterior 2/3 of the genital segment being longest. Rostrum with 2 long filaments, strongly developed. Urosomal segments and caudal rami proportions 35:17:14:12:22 = 100. Genital segment asymmetrical and with lateral swellings; anteriorly at right lateral margin it is produced externally into a recurved peg-like structure; when viewed dorsally, the left lateral margin appears uneven; ventrally genital segment has a prominent genital boss; genital pore paired, is guarded anteriorly by two sets of fine spines and with a median genital groove; at the posterior margin ventrally a cluster of 5-6 small needle-like spines present. Caudal rami symmetrical, length: width ratio = 2.8:1. A1 21-segmented, reaches the anterior margin of genital segment.

Male: m, habitus (dorsal); n, urosome (dorsal); o, A1; p, P5.
Nota: Urosomal segments with caudal rami proportions 13:18: 18:19 = 100. A1 19-segmented.


Species Pseudodiaptomus andamanensis - Plate 2 of morphological figuresissued from : T.C. Walter, S. Ohtsuka, S. Putchakarn, K. Pinkaew & S. Chullasorn in Proc. Biol. Soc. Washington, 2002, 115 (3). [p.659, Fig.5].
Female (from Ko Aew Is. & Phuket Is., Andaman Sea): A-B, habitus (dorsal and lateral, respectively); C, genital double-somite (ventral); D, P5 (posterior); E, A1; F, antennular segment 19 specialized seta.
Scale bars: 1.0 mm (A-B); 0.1 mm (C-E); 0.05 mm (F).


Species Pseudodiaptomus andamanensis - Plate 3 of morphological figuresissued from : T.C. Walter, S. Ohtsuka, S. Putchakarn, K. Pinkaew & S. Chullasorn in Proc. Biol. Soc. Washington, 2002, 115 (3). [p.660, Fig.6].
Male: A-B, habirus (dorsal and lateral, respectively); C, P5 (posterior); D, P5 (anterior); E, A1.
Scale bars: 1.0 mm (A-B); 0.1 mm (C-E).


Species Pseudodiaptomus andamanensis - Plate 4 of morphological figuresissued from : T.C. Walter, S. Ohtsuka, S. Putchakarn, K. Pinkaew & S. Chullasorn in Proc. Biol. Soc. Washington, 2002, 115 (3). [p.661, Fig.7].
Female: A, genital double somite (ventral view); genital atrium indicated by large arrow, left hair-sensillum by small arrow.
B, genital double somite (ventral view, magnified); g = genital operculum; genital atrium indicated by large rarrow; spermatophore remnant to the right of arrow.
C, genital double somite, ventral view of left hair-sensillum (magnification of A, indicated by small arrow).
Scale bars: 0.1 mm (A-B); 0.01 mm (C).


Species Pseudodiaptomus andamanensis - Plate 5 of morphological figuresissued from : T.C. Walter, S. Ohtsuka, S. Putchakarn, K. Pinkaew & S. Chullasorn in Proc. Biol. Soc. Washington, 2002, 115 (3). [p.662, Fig.8, A].
Female: A, labrum (ventral view).
Scale bar 0.1 mm.

Compl. Ref.:
Dussart & Defaye, 1983 (p.35); Madhupratap & Haridas, 1986 (p.105, tab.2); Walter, 1986 (p.131); 1986 a (p.503); 1987 (p.367); Maiphae & Sa-ardrit, 2011 (p.641, Table 2)
NZ: 1

Distribution map of Pseudodiaptomus andamanensis by geographical zones
Loc:
Andaman Is. (Marine Bay, Port Blair)
N: 2
Lg.:
(1005) F: 2,16-2,20; M: 1,83-1,88; (1061) F: 2,19; M: 1,80; {F: 2,16-2,20; M: 1,80-1,88}
Rem.: coastal.
Incomplete data.
In Improcerus species group, after Walter & al. 2006, p.203.
Last update : 29/03/2012
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